3. simplify: (4g - 3h)² + (49+ 3h)² answer
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(4g-3h)²+(4g+3h)²
(a-b)²+(a+b)² = 2(a²+b²)
2[(4g)²+(3h)²]
2(16g²+9h²)
32g²+18h²
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i hope you understand
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